Writing instrument



FIG. 1 is a perspective view showing my new design for writing instrument;

FIG. 2 is a rear view of the writing instrument of FIG. 1;

FIG. 3 is a side view of the writing instrument of FIG. 1, the opposite side view being a mirror image thereof;

FIG. 4 is a front view of the writing instrument of FIG. 1;

FIG. 5 is a top plan view of the writing instrument of FIG. 1;

FIG. 6 is a bottom plan view of the writing instrument of FIG. 1;

FIG. 7 is a perspective view showing a second embodiment of the writing instrument of FIG. 1;

FIG. 8 is a rear view of the writing instrument of FIG. 7;

FIG. 9 is a side view of the writing instrument of FIG. 7, the opposite side view being a mirror image thereof;

FIG. 10 is a front view of the writing instrument of FIG. 7;

FIG. 11 is a top plan view of the writing instrument of FIG. 7; and,

FIG. 12 is a bottom plan view of the writing instrument of FIG. 7. 

The ornamental design for a writing instrument, as shown and described. 